74 THE CHINESE SUGAR-CANE. 



divided throughout the mass, stirring all cold, 

 and during the early part of the heating. The 

 process in this kettle should be conducted some- 

 what slowly, and if the kettle be large enough 

 to permit all the scum to rise without overflow- 

 ing it, the scum need not be removed, as it will 

 remain on top of the fluid, becoming more and 

 more compact. The juice should not be allowed 

 to boil or simmer. After the clarification is 

 perfect, the scum on top will crack open in all 

 directions, and white, sparkling bubbles will rise 

 through these cracks, overflowing the top of the 

 scum, and it will turn over in masses. The scum 

 may be taken off and the juice thrown on a 

 blanket in an open basket, thus partially filter- 

 ing the mass. 



" It should then be placed in kettle No. 2, 

 and boiled as rapidly as possible until a thermom- 

 eter placed in it will indicate 220 degrees of 

 Fahrenheit, when it should be again filtered. 

 The first portion passing the filter should be 

 returned, as it will not be quite clear. The 

 whole will then be bright, and may be put into 

 kettle No. 3, which need be but half the size of 

 the others, and should be placed on a clear, 

 strong fire, and so arranged that it can be read- 

 ily taken from the fire at short notice. Place in 



